Black walnuts in vanilla syrup

Everyone knows walnut liquor. It’s the spirit in which green walnuts are steeped. We’ve found an old recipe for pickled walnuts. It’s a rather lengthy process, as the walnuts have to steep in water for a long time before they’re ready to be processed, and it is then that they take on that dark black colour. We top them with syrup and add a dash of vanilla and other seasoning.